NDLI: Rhodium-incorporated faujasite prepared at 80 °C

Content Provider	Springer Nature Link
Author	Suzuki, Hideri Hasegawa, Masatoshi Katsuki, Kazuko
Copyright Year	2007
Abstract	Rhodium-incorporated zeolites were synthesized from orthosilicate, aluminum nitrate, and rhodium chloride at 80 °C. Crystal phase diagram (zeolite types as functions of rhodium feed ratio and reaction period) showed that pure faujasite was formed in a wide range, but prolonged reaction caused partial transformation from faujasite to cancrinite at the rhodium feed ratio Rh/(Al + Rh) ≤ 0.02 and to gismondine at Rh/(Al + Rh) ≥ 0.4. X-ray diffraction analysis illustrated that an increase in the rhodium feed ratio caused appreciable decreases in the d-spacings, suggesting that rhodium was incorporated into the faujasite framework. ICP-OES analysis for the products showed that the rhodium content increased almost linearly with the increase in the rhodium feed ratio with an upper limit of the analyzed Rh content Rh/(Al + Rh) = 0.183 at the Rh feed ratio of 0.3. The products were almost quantitatively ion-exchanged using an ammonium chloride aqueous solution to study the ammonia desorption profiles on TG-DTA/MS analysis in the heating process. Considerably sharp exothermic peaks were observed at 245 °C simultaneously in the heating process. These peaks are probably related to catalytic decomposition of ammonia and desorption of ammonia, nitrogen, and water in the zeolite. A hypothesis was proposed for this mechanism: rhodium can be abruptly eliminated at an elevated temperature from the zeolite framework toward the micropores to form its hydroxides or oxides, then they triggered a catalytic decomposition of the adsorbed ammonia. The effect of calcination on crystallinity of the products and catalytic reactivity for hydrogen peroxide decomposition supported the proposed mechanism.
Starting Page	685
Ending Page	694
Page Count	10
File Format	PDF
ISSN	13802224
Journal	Journal of Porous Materials
Volume Number	15
Issue Number	6
e-ISSN	15734854
Language	English
Publisher	Springer US
Publisher Date	2007-10-26
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Rhodium-incorporated zeolites Faujasite Gismondine Ammonia desorption TG-DTA/MS Catalytic decomposition of hydrogen peroxide Physical Chemistry Characterization and Evaluation of Materials Catalysis
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Characterization and properties of iron-incorporated gismondine prepared at 80°C

Effect of anion species from Ca-sources on framework type of Na–Ca zeolites prepared at 80°C

Effect of reaction temperature on Fe–Al analcime formation

Thermal decomposition mechanism of PrCl3·6H2O in air atmosphere

Effects of Zeolite Addition on the Manganese Catalyzed Decomposition of Hydrogen Peroxide

Synthesis and catalytic properties of porous Ta carbide crystallites for hydrogen production from the decomposition of ammonia

Highly ordered crystalline mesoporous metal oxides for hydrogen peroxide decomposition

Zeolite-encapsulated 2-(o-aminophenyl)benzimidazole complexes: synthesis, characterization and catalytic activity

SBA-15 mesoporous silica modified with rhodium by MDD method and its catalytic role for N$_{2}$O decomposition reaction

Rhodium-incorporated faujasite prepared at 80 °C

Similar Documents

Characterization and properties of iron-incorporated gismondine prepared at 80°C

Effect of anion species from Ca-sources on framework type of Na–Ca zeolites prepared at 80°C

Effect of reaction temperature on Fe–Al analcime formation

Thermal decomposition mechanism of PrCl3·6H2O in air atmosphere

Effects of Zeolite Addition on the Manganese Catalyzed Decomposition of Hydrogen Peroxide

Synthesis and catalytic properties of porous Ta carbide crystallites for hydrogen production from the decomposition of ammonia

Highly ordered crystalline mesoporous metal oxides for hydrogen peroxide decomposition

Zeolite-encapsulated 2-(o-aminophenyl)benzimidazole complexes: synthesis, characterization and catalytic activity

SBA-15 mesoporous silica modified with rhodium by MDD method and its catalytic role for N$_{2}$O decomposition reaction

Rhodium-incorporated faujasite prepared at 80 °C